Function description
Operating Manual PSENmlock mini, PSEN mlm 1 sa 1.1/2.1/2.2
1005802-EN-02-Draft
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5.8.1 Operation without Safety Device Diagnostics
5.8.1.1 Timing diagram, case 1 (operation without Safety Device Diagnostics)
} [1] The safety gate is open. Diagnostic input Y1 is activated (high), the auxiliary release is
not operated (low).
} [2] Safety inputs S11/21 signal that guard locking has been activated successfully on the
preceding device in the series connection (high).
} [3] The safety gate is closed, the diagnostic-/signal output Y32 signals that the safety
gate is closed (high).
} [4] Guard locking is requested via safety inputs S31/S41. As soon as guard locking is
safely secured, safety outputs 12/22 are activated (high).
} [5] The safety gate is now securely locked.
} [6] Execution of the hazardous machine function is now permitted.
Guard locking
Actuator
Y1 (high)
S11/S21
Auxiliary release (low)
S31/S41
Y32
12 /22
32 /42
Fig.: Timing diagram, case 1
Legend
[1] Safety gate open
[2] Series connection input switches to high
[3] Safety gate closed
[4] Guard locking requested (by safety controller)
[5] The safety gate is securely locked (guard locking is activated)
[6] Execution of the hazardous machine function is permitted
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